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Finding the Fourth Proportional to 624,298.80, 935,065.80 and 513,706.80

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Solution

The fourth proportional to 624,298.80, 935,065.80 and 513,706.80 is: 769,422.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,298.80 : 935,065.80 = 513,706.80 : x
  2. Step 2: Convert to fraction form
    624,298.80/935,065.80 = 513,706.80/x
  3. Step 3: Cross multiply
    624,298.80x = 935,065.80 × 513,706.80
  4. Step 4: Simplify right side
    624,298.80x = 480,349,659,907.44
  5. Step 5: Solve for x
    x = 480,349,659,907.44/624,298.80
  6. Step 6: Final answer
    x = 769,422.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.